Dyfyniad APA

Snowden, P. R. (1987). Regional secure units: Arriving but under threat.

Dyfyniad Arddull Chicago

Snowden, P R. Regional Secure Units: Arriving but Under Threat. 1987.

Dyfyniad MLA

Snowden, P R. Regional Secure Units: Arriving but Under Threat. 1987.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.